ICs, transistors and diodes used in the OC-2:
IC1-IC5: TL022CP dual operational amplifiers
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IC6: BA634 (Single T-Type Flip-Flop IC)
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IC7: uPD4013C (Dual D-Type Flip-Flop IC)
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Q1, Q3, Q4, Q7, Q8: 2SK30ATM-Y (N-channel JFET transistors)
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Q2: 2SC732TM-GR (NPN silicon transistor)
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Q5, Q6: 2SC1815-Y (NPN silicon transistor)
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D1: S5500G (400V, 1A switching diode)
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D2: RD5.1EB-3 (500mW 5.1V Zener diode)
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D3-D9: 1SS133 (switching diodes)
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D10, D11: 1S-188FM (Germanium diodes)
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